“…The amount of total liver tocopherol in chicks declines after hatching and does not begin to increase, even with high amounts of dietary atocopheryl acetate, until 2 weeks later (Irving and Watts, 1962). A relationship between tocopherol levels in the dams' diet and the onset of encephalomalacia in their chicks was shown to exist (Singsen et al, 1954). Differences in AT reserves in newly hatched chicks obtained from different 1 Contribution from The National and University Institute of Agriculture, Rehovot, Israel.…”